Combination lock-valve.



J. A. STEPHENSON 61 L. WACHSMAN.

COMBINATIONLOCK VALVE.

APPLICATION FILED DEC.19.1917.

Patented Oct. 15, 1918..

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JOHN A. STEPHENSON AND LEOPOLD WACHSMAN, OF CINCINNATI, OHIO.

COMBINATION LOCK-VALVE.

Specification of Letters Patent.

Patented Oct. 15, 1918.

Application filed December 19,1917. Serial No. 207,846.

To all whom it may concern:

Be it known that we, JOHN A. STEPHEN- SON and LEOPOLD WACHSMAN, citizens of the United States, residing, respectively, at No. 326 Northern avenue and Flat C, 17 Langdon Court, Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful device, called a Combination Lock-Valve, to be used as a means of protection against theft and relating to antomobiles or other machines in which oil, gasolene, water, steam, or any fluid or vapor is the motive power.

Figure 1 is a vertical axial sectional view of the device. Fig. 2 is a view in elevation of the manipulating means. Fig. 8 is a sectional view on the line 8-8 of Fig. 1.

Our invention as shown in the annexed drawings, consists substantially of a metal casing of any diameter, designated in the drawings, see Fig. (1), as, A, provided with threaded inlet and outlet designated, B, and surmounted by a metal boss, C, containing three plungers, 0, controlled by tension springs, d. These plungers are held in the boss by means of screw plugs, e, and their projecting points enter the interior of the casing. The drawings further show metal disks, three of the same identical construction and of the same diameter; the middle disk being thicker than the first and third; being employed in the invention and set so close together on a central shaft that their surfaces touch, as shown in Fig. (1), the disks being designated, D. These disks correspond in diameter to the diameter of the casing, fitting the same closely. Their rims contain at regular intervals, twenty or more equally spaced indentations, f, in and out of which the aforesaid plungers work. The drawings further show, a metal central rod or shaft, E, provided with a metal arm, 9. The disks carry vents, V, near the edge, each vent set at the same distance from the center of its disk and each of the same diameter as the inlet and outlet of the casing; and five set pins, a, 2, 3, 4, 5, fastened in the following manner: The first disk, to the right in the drawing carries two pins, a, 2, at different distances from the edge of the disk. The pin, a, is set at the same height as the arm on the central shaft, the other pin, 2, is fastened to the inner side of the same disk, near the edge. The center disk carries two corresponding pins on opposite edges and adjoining the rim; 3, at the same distance from the shaft as 2, on the first disk, and 4:, on the opposite side of the middle disk, at the same distance from said central shaft as pin, 5, on the third disk. Pins 2 and 5, are set at right angles to pins,3 and 4:, respectively. The disks are turned by means of the shaft, the revolutions of which bring the metal arm into contact with the pin, a, on the outer surface of the first disk, the other disks being revolved in the same manner, by a second, third, and subsequent revolution of the shaft and an interlocking of the pins. To regulate the revolutions the shaft is connected with a dial, G, shown in Fig. 2, of the drawings. carrying twenty or more numbers, corresponding to the indentations in the outer rims of the disks and a regulator. 21, and is controlled by this regulator. numbered dial plate. tension springs. plungers, disks and tumbler. very much in the same manner as the devices now in common use for locking safes. The casing further contains a metal ring, R. located between the first disk and the end of the casing, of the same diameter as the interior of the casing. and fitting a shoulder, S, of the casing to hold the disks in place.

By turning the regulator on the shaft either to the right or left. the shaft is also caused to revolve in the same direction. The

arm, 0. is forced against pin, a. causing the first disk to revolve. the second turn forces pins 2 and 3. together and causes the second disk to revolve. while the third turn interlocks pins 4 and 5, and the third disk is set in motion. A stop on a certain number on the dial plate fixed by the combination causes the third disk to remain stationary, with its vent in straight alinement with the outlet of the casing. This is accomplished by means of the indentation on the disk, the plunger, and the tension spring. The revolution of the disk, raises the plunger out of the indentation in the rim of the disk and permits the tension spring to contract, forces back and permits the point of the plunger to slip along the edge of disk, in and out of the other indentations until desired stop 1s reached. Here the opening presented by the indentation corresponding to fixed number, releases pressure on tension spring; the same expands and forces the point of the plunger into the indentation, thus holding the disk. A reverse turn on the regulator causes the shaft to revolve in the opposite direction and turns the second and third disks in a proper direction. A stop on the next number of the combination series, causes the second disk to stop, with its vent in alinement with the vent on disk three. Disk, one, is revolved by itself, if the revolution of the shaft is again reversed and comes to a stop on a third number of combination series, with its vent in straight alinement with the other two vents, thus forming a straight bore. Subsequent turns of the shaft in either direction cause the disks to revolve separately and thus break the connection between the vents and close the same, with the unvented portion of disks.

We claim:

A look valve comprising a casing having an inlet port and an outlet port, a rod rotatably mounted therein, a plurality of ported, close fitting valve disks, positioned in the casing and loosely mounted on said rod, a cover for said casing, and an annular ring positioned between the cover and the outermost valve disk, whereby said valve disks are held in position, said valve disks having a plurality of depressions arranged about their peripheries, and a plurality of spring pressed detent members carried by the casing and cooperating with said depressions, said rod having a disk operating arm within the casing, and cooperating pins carried by said disks, whereby rotationof said rod actuates said valve disks so as to establish communication between the inlet and outlet ports, the outer end of'said rod carry ng a handle, and a scale with which said handle cooperates.

JOHN A. STEPHENSON. LEOPOLD WACHSMAN;

Witnessed by ALBERT T. WEINSTEIN, ALBERT SKERR.

Copies of this patent may be obtained for five cents' each, by addressing the commissioner of Patents, Washington, D. G. 

